4-Prong L14-30P / L14-30R 30 Amp Generator Extension Cord 10AWG*4 125/250V STW VELCRO STRAP UL APPROVED. By LifeSupplyUSA. This is a high quality replacement part by LifeSupplyUSA, exclusively for sale by LifeSupplyUSA. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility.